Add custom Login form

[anantjain6]

Currently, we are using Spring Security's default login page.
You have to create a new login page using Boostrap. (You can refer to other JSP pages of this project)

[Belta-shazzar]

@anantjain6 please assign me this. I would like to take up the project

[anantjain6]

@Belta-shazzar plz directly add PR